Is it true that drinking alcoholic beverages like DOM or eating dishes cooked with alcohol will is thought to boost blood circulation and warm up the body?

I don't think it's that true because alot of people cannot drink alcohol due to religious or personal reasons. Drinking and eating food cooked in alcohol might help but it is not compulsory, I reckon. When I moved abroad for the first time in 2009, I asked a coordinator whether drinking alcohol really keeps you warm but they revealed that it is not true. Too much alcohol can actually lower your core temperature and it can be dangerous.